concentration

• Nom désignant soit la quantité d'une substance dans un volume ou une masse donnés d'un mélange ou d'une solution, soit la capacité de fixer son attention sur une tâche ou un objet précis.

A noun referring to the amount of a substance present in a given volume or mass of a mixture or solution, or the ability to focus one's attention on a particular task or subject.

1. Mental focusB1formal

   The ability to give all your attention to something without being distracted.

   Concentration (attention focalisée)

   • The task requires a lot of concentration.
   • She lost her concentration when the phone rang.
   • Meditation can improve your concentration.

   Synonymesabsorptionapplicationattentionattentivenessengrossmentfocussingle-mindednessthought

   Antonymesabsentmindednessdistractioninattention

2. Amount of substanceB2formalscientific

   The amount of a substance present in a mixture or solution.

   Concentration (chimie)

   • The concentration of salt in the water is too high.
   • Scientists measured the concentration of carbon dioxide in the air.
   • High concentrations of the chemical can be dangerous.

   Synonymescontentpotencystrengthtiter

3. Gathering or clusteringB2formal

   A large number of people or things gathered together in one area.

   Concentration/Regroupement

   • There is a high concentration of tech companies in the city.
   • The concentration of troops near the border caused concern.
   • The map shows the concentration of population in urban areas.

   Synonymesaggregationassemblybunchclusterclusteringcollectioncongregationcrowdgatheringmass

   Antonymesdispersaldispersionscatterscattering